Start learning →

MHT-CET Ecosystems and Energy Flow — practice questions

Explore 68 free Ecosystems and Energy Flow questions in MHT-CET Biology. Open each question or exercise to read its content, reference answers and available explanation.

Practise Ecosystems and Energy Flow with Quill →

Ecosystems and Energy Flow questions and exercises with answers

Showing questions 1–30 of 68.

The vertical distribution of species at different levels in an ecosystem is calledRead the answer and worked solution →In a forest, which plants occupy the topmost vertical layer?Read the answer and worked solution →Species composition and stratification are the two main features of an ecosystem'sRead the answer and worked solution →Which one is NOT a basic functional aspect of an ecosystem?Read the answer and worked solution →In a pond ecosystem, the decomposers are mainlyRead the answer and worked solution →In a pond, the consumers are represented byRead the answer and worked solution →Which group forms the autotrophic component of a pond?Read the answer and worked solution →Energy in an ecosystem moves in which manner?Read the answer and worked solution →Primary production is the biomass produced per unit area over time byRead the answer and worked solution →Which unit is used to express productivity?Read the answer and worked solution →Net primary productivity equals GPP minus losses due toRead the answer and worked solution →The biomass available for consumption by heterotrophs is theRead the answer and worked solution →Secondary productivity is the rate of new organic matter formation byRead the answer and worked solution →Annual net primary productivity of the whole biosphere is aboutRead the answer and worked solution →The oceans contribute only about how much of annual NPP?Read the answer and worked solution →The earthworm is called the farmer's friend because itRead the answer and worked solution →The raw material for decomposition is calledRead the answer and worked solution →Which step is NOT part of decomposition?Read the answer and worked solution →Breakdown of detritus into smaller particles by earthworms is calledRead the answer and worked solution →Water-soluble nutrients moving down into the soil and getting precipitated isRead the answer and worked solution →Degradation of detritus by bacterial and fungal enzymes is calledRead the answer and worked solution →Humification results in the accumulation ofRead the answer and worked solution →Humus is highly resistant to microbial action and therefore decomposesRead the answer and worked solution →Humus acts as a reservoir of nutrients because it isRead the answer and worked solution →The release of inorganic nutrients from humus is calledRead the answer and worked solution →Decomposition is largely a process that requiresRead the answer and worked solution →Decomposition is slower if detritus is rich inRead the answer and worked solution →Detritus rich in which material decomposes quicker?Read the answer and worked solution →Which climatic factors chiefly regulate decomposition?Read the answer and worked solution →Decomposition is favoured by an environment that isRead the answer and worked solution →

Worked practice questions

The vertical distribution of species at different levels in an ecosystem is called

  1. Zonal mapping
  2. Species richness
  3. Seral succession
  4. Stratification
Show answer and solution

Correct answer: D. Stratification

Stratification describes layering such as trees, shrubs and herbs in a forest.

Open this question →

In a forest, which plants occupy the topmost vertical layer?

  1. Herbs
  2. Grasses
  3. Shrubs
  4. Trees
Show answer and solution

Correct answer: D. Trees

Tall trees form the top stratum, with shrubs below them and herbs and grasses at the bottom.

Open this question →

Species composition and stratification are the two main features of an ecosystem's

  1. Productivity rate
  2. Energy flow rate
  3. Nutrient cycling
  4. Physical structure
Show answer and solution

Correct answer: D. Physical structure

These two features describe what species occur and how they are arranged, which is the physical structure.

Open this question →

How to practise

  1. Choose a Ecosystems and Energy Flow question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.

More Biology topics

Molecular Basis of InheritanceHuman Health and DiseaseNeural Control and CoordinationPrinciples of Inheritance and VariationReproduction in Lower and Higher AnimalsPlant Growth and Mineral NutritionReproduction in Lower and Higher PlantsPlant Water Relations